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<Title>Stacked Radar Chart</Title>
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<p class="heading0">ChartDirector 7.0 (Java Edition)</p>
<p class="heading1">Stacked Radar Chart</p>
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<img src="images/stackradar.png" width='480' height='460'>
<br><br>
This example demonstrates a stacked radar chart.<br><br>
This example is similar to the previous <a href="multiradar.htm">Multi-Radar Chart</a> example, except the data are stacked before passing to ChartDirector.
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<p class="heading1a">Source Code Listing</p>
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<b>[JSP Version]</b> jspdemo/stackradar.jsp
<div class='codeblock'><code class='pre'>&lt;%@page import="ChartDirector.*, java.util.*" %&gt;
&lt;%
// The data for the chart
double[] data0 = {100, 100, 100, 100, 100};
double[] data1 = {90, 85, 85, 80, 70};
double[] data2 = {80, 65, 65, 75, 45};

// The labels for the chart
String[] labels = {"Population&lt;*br*&gt;&lt;*font=Arial*&gt;6 millions",
    "GDP&lt;*br*&gt;&lt;*font=Arial*&gt;120 billions", "Export&lt;*br*&gt;&lt;*font=Arial*&gt;25 billions",
    "Import&lt;*br*&gt;&lt;*font=Arial*&gt;24 billions", "Investments&lt;*br*&gt;&lt;*font=Arial*&gt;20 billions"};

// Create a PolarChart object of size 480 x 460 pixels. Set background color to silver, with 1 pixel
// 3D border effect
PolarChart c = new PolarChart(480, 460, Chart.silverColor(), 0x000000, 1);

// Add a title to the chart using 15pt Times Bold Italic font. The title text is white (ffffff) on a
// deep green (008000) background
c.addTitle("Economic Growth", "Times New Roman Bold Italic", 15, 0xffffff).setBackground(0x008000);

// Set plot area center at (240, 270), with 150 pixels radius
c.setPlotArea(240, 270, 150);

// Use 1 pixel width semi-transparent black (c0000000) lines as grid lines
c.setGridColor(0xc0000000, 1, 0xc0000000, 1);

// Add a legend box at top-center of plot area (240, 35) using horizontal layout. Use 10pt Arial
// Bold font, with silver background and 1 pixel 3D border effect.
LegendBox b = c.addLegend(240, 35, false, "Arial Bold", 10);
b.setAlignment(Chart.TopCenter);
b.setBackground(Chart.silverColor(), Chart.Transparent, 1);

// Add area layers of different colors to represent the data
c.addAreaLayer(data0, 0xcc8880, "Year 2004");
c.addAreaLayer(data1, 0xffd080, "Year 1994");
c.addAreaLayer(data2, 0xa0bce0, "Year 1984");

// Set the labels to the angular axis as spokes.
c.angularAxis().setLabels(labels);

// Set radial axis from 0 - 100 with a tick every 20 units
c.radialAxis().setLinearScale(0, 100, 20);

// Just show the radial axis as a grid line. Hide the axis labels by setting the label color to
// Transparent
c.radialAxis().setColors(0xc0000000, Chart.Transparent);

// Output the chart
WebChartViewer viewer = new WebChartViewer(request, "chart1");
viewer.setChart(c, Chart.SVG);

// Include tool tip for the chart
viewer.setImageMap(c.getHTMLImageMap("", "", "title='Current {label}: {value}% in {dataSetName}'"));
%&gt;
&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;title&gt;Stacked Radar Chart&lt;/title&gt;
    &lt;!-- Include ChartDirector Javascript Library to support chart interactions --&gt;
    &lt;script type="text/javascript" src="cdjcv.js"&gt;&lt;/script&gt;
&lt;/head&gt;
&lt;body style="margin:5px 0px 0px 5px"&gt;
    &lt;div style="font:bold 18pt verdana;"&gt;
        Stacked Radar Chart
    &lt;/div&gt;
    &lt;hr style="border:solid 1px #000080; background:#000080" /&gt;
    &lt;div style="font:10pt verdana; margin-bottom:1.5em"&gt;
        &lt;a href="viewsource.jsp?file=&lt;%=request.getServletPath()%&gt;"&gt;View Source Code&lt;/a&gt;
    &lt;/div&gt;
    &lt;!-- ****** Here is the chart image ****** --&gt;
    &lt;%= viewer.renderHTML(response) %&gt;
&lt;/body&gt;
&lt;/html&gt;</code></div>
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<br><hr class="separator"><div class="copyright">&copy; 2022 Advanced Software Engineering Limited. All rights reserved.</div>
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